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75868-85-8

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75868-85-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75868-85-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,8,6 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75868-85:
(7*7)+(6*5)+(5*8)+(4*6)+(3*8)+(2*8)+(1*5)=188
188 % 10 = 8
So 75868-85-8 is a valid CAS Registry Number.

75868-85-8Downstream Products

75868-85-8Relevant articles and documents

Chlorination of 3β-hydroxyl-5-Δ steroids with anhydrous ferric chloride

Liu, Feng-Wu,Liu, Hong-Min,Zhang, Yan-Bing,Zhang, Jing-Yu,Tian, Li-Huan

, p. 825 - 830 (2007/10/03)

Treatment of 3β-hydroxyl-5-Δ steroids with anhydrous FeCl 3 in CH2Cl2 afforded reasonable yields of the corresponding alkyl chlorides with a retention of configurations. The structures of the chlorine-exchanging products were determined by NMR and HRMS spectra. The absolute configurations were confirmed by X-ray crystal analysis of 3β-chloro-androst-5-en-17-one. The generality and scope of the reaction were also investigated.

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